<template>
    <view
        class="u-progress"
        :style="{
            borderRadius: round ? '100rpx' : 0,
            height: height + 'rpx',
            backgroundColor: inactiveColor
        }"
    >
        <view
            :class="[
                type ? `u-type-${type}-bg` : '',
                striped ? 'u-striped' : '',
                striped && stripedActive ? 'u-striped-active' : ''
            ]"
            class="u-active"
            :style="progressStyle"
        >
            <slot v-if="slots.default" />
            <template v-else-if="showPercent">
                {{ percent + '%' }}
            </template>
        </view>
    </view>
</template>

<script lang="ts">
export default {
    name: 'u-line-progress',
    options: {
        addGlobalClass: true,
        // #ifndef MP-TOUTIAO
        virtualHost: true,
        // #endif
        styleIsolation: 'shared'
    }
};
</script>

<script setup lang="ts">
import { computed, useSlots } from 'vue';
import { LineProgressProps } from './types';

/**
 * lineProgress 线型进度条
 * @description 展示操作或任务的当前进度，比如上传文件，是一个线形的进度条。
 * @tutorial https://uviewpro.cn/zh/components/lineProgress.html
 * @property {String Number} percent 进度条百分比值，为数值类型，0-100
 * @property {Boolean} round 进度条两端是否为半圆（默认true）
 * @property {String} type 如设置，active-color值将会失效
 * @property {String} active-color 进度条激活部分的颜色（默认#19be6b）
 * @property {String} inactive-color 进度条的底色（默认#ececec）
 * @property {Boolean} show-percent 是否在进度条内部显示当前的百分比值数值（默认true）
 * @property {String Number} height 进度条的高度，单位rpx（默认28）
 * @property {Boolean} striped 是否显示进度条激活部分的条纹（默认false）
 * @property {Boolean} striped-active 条纹是否具有动态效果（默认false）
 * @example <u-line-progress :percent="70" :show-percent="true"></u-line-progress>
 */
const props = defineProps(LineProgressProps);
const slots = useSlots();

/**
 * 进度条激活部分的样式
 */
const progressStyle = computed(() => {
    let style: Record<string, string> = {};
    style.width = props.percent + '%';
    if (!props.type && props.activeColor) style.backgroundColor = props.activeColor;
    return style;
});
</script>

<style lang="scss" scoped>
@import '../../libs/css/style.components.scss';

.u-progress {
    overflow: hidden;
    height: 15px;
    /* #ifndef APP-NVUE */
    display: inline-flex;
    /* #endif */
    align-items: center;
    width: 100%;
    border-radius: 100rpx;
}

.u-active {
    width: 0;
    height: 100%;
    align-items: center;
    @include vue-flex;
    justify-items: flex-end;
    justify-content: space-around;
    font-size: 20rpx;
    color: #ffffff;
    transition: all 0.4s ease;
}

.u-striped {
    background-image: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%,
        transparent
    );
    background-size: 39px 39px;
}

.u-striped-active {
    animation: progress-stripes 2s linear infinite;
}

@keyframes progress-stripes {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 39px 0;
    }
}
</style>
